What is the best explanation of why patients experiencing an anaphylactic reaction have difficulty breathing?
A) Allergens use the available oxygen molecules
B) Antibodies depress the brain's respiratory center
C) Histamine constricts the bronchioles
D) Antigens increase the body's need for oxygen
C) Histamine constricts the bronchioles
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What is vital capacity?
a. The volume of the lungs at peak inspiration b. The amount of air that can be inhaled after normal expiration c. The amount of air remaining in the lungs after a normal expiration d. The amount of air that can be exhaled following forced inspiration and including maximum expiration
Injection of an anesthetic into the space immediately outside of the dura mater is known as:
A) general anesthesia B) spinal anesthesia C) epidural anesthesia D) none of the above
How many pairs of cranial nerves can be found in the peripheral nervous system?
A. 3 B. 12 C. 22 D. 31
Which of the following pieces of equipment requires regular calibration?
A) Pulse oximeter B) Cardiac monitor C) Non-invasive blood pressure cuff D) Electronic thermometer